/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineGroupsInterface.h
Get cached pending invitation information (if it exists). This retrieves a list of membership invitations that the user's admin clans have created (outgoing) or to which the user can respond (incoming).
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< const [IInvitations](API\Plugins\OnlineSubsystem\Interfaces\IInvitations) > GetCachedInvitations ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & ContextUserId, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & UserId )